The rotation periods of cool stars: Measurements, uses, connections and prospects
23rd - 26th September 2019
Talk
With Kepler and Gaia: two eyes on Ru147
David Gruner, AIP
In my talk I'll present the newest results for stellar rotation periods of the oldest nearby open cluster Ruprecht 147. With high precision Gaia astrometry, we are able to identify members of a cluster which is fairly extended on the night sky. We used Gaia photometry and rotation periods extracted from K2 lightcurves to construct a Color-Period-diagram for this 3Gyr old cluster. I'll close with a discussion of the findings and their implications for gyrochronogy.